J
jim beam
Guest
[email protected] wrote:
> Tom Ace wrote:
>
>>>> Are the 1980s rims you have in mind clincher or tubular rims?
>>>> 265g was about the weight of a Fiamme yellow label tubular rim.
>
>>>> Someone please correct me if I'm wrong, but I thought many tubular
>>>> rims of that era were not extruded but rather formed from sheet.
>>>> I have noticed a seam running all the way around the rim (in the
>>>> middle of the surface the tire glues to) on Mavic tubular rims
>>>> from the 70s and 80s.
>
>>> AFAIK Mavic, Fiamme, Super Champ, Weinmann, etc were all extruded
>>> and pinned at the seam opposite the valve with a shaped insert.
>
>> I put a pic of a mid-1980s Mavic GP4 tubular rim on the web at:
>
> http://minortriad.com/gp4.jpg
>
>> The seam I'm referring to is a small ridge on the top surface, and
>> there's a more pronounced blob on the underside of the same section
>> (visible through the valve hole).
>
>> If it's not a seam, what is it? I haven't seen anything like it on
>> the (extruded) clincher rims I've had.
>
> From what I have seen, those are artifacts produced by a floating core
> extrusion die and constitute a full depth weld in a neutral plane.
you absolute bullshitter! "a full depth weld in a neutral plane" of an
extrusion??? jobst, that is the most outstanding piece of made-up,
suppositional, pathetic attempt at trying to sound relevant, **** that
i've ever seen from you. and you've uttered some real peaches in the
past. absolutely outrageous.
> Tom Ace wrote:
>
>>>> Are the 1980s rims you have in mind clincher or tubular rims?
>>>> 265g was about the weight of a Fiamme yellow label tubular rim.
>
>>>> Someone please correct me if I'm wrong, but I thought many tubular
>>>> rims of that era were not extruded but rather formed from sheet.
>>>> I have noticed a seam running all the way around the rim (in the
>>>> middle of the surface the tire glues to) on Mavic tubular rims
>>>> from the 70s and 80s.
>
>>> AFAIK Mavic, Fiamme, Super Champ, Weinmann, etc were all extruded
>>> and pinned at the seam opposite the valve with a shaped insert.
>
>> I put a pic of a mid-1980s Mavic GP4 tubular rim on the web at:
>
> http://minortriad.com/gp4.jpg
>
>> The seam I'm referring to is a small ridge on the top surface, and
>> there's a more pronounced blob on the underside of the same section
>> (visible through the valve hole).
>
>> If it's not a seam, what is it? I haven't seen anything like it on
>> the (extruded) clincher rims I've had.
>
> From what I have seen, those are artifacts produced by a floating core
> extrusion die and constitute a full depth weld in a neutral plane.
you absolute bullshitter! "a full depth weld in a neutral plane" of an
extrusion??? jobst, that is the most outstanding piece of made-up,
suppositional, pathetic attempt at trying to sound relevant, **** that
i've ever seen from you. and you've uttered some real peaches in the
past. absolutely outrageous.